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Engine "pucks"???

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Old Apr 14, 2007 | 10:48 AM
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Default Engine "pucks"???

Noticed on a block I got back from a machinist had what looked like a metal puck, or washer epoxied to the front of the block. What is the purpose of this? Warranty ?

Upon initial startup the motor ran WAY lean and the thing slid down about an inch. Damn headers were glowing like a flouresent light within a minute of startup. (Had to break the cam in)
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Old Apr 14, 2007 | 04:55 PM
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Is it under the timing cover area?

It could be a magnet, used to attract metal shavings/particles. Most builders tend to put them in the lifter valley area though, or attached to the bottom of a steel oil pan.
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Old Apr 14, 2007 | 05:49 PM
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Originally Posted by cuisinartvette
Noticed on a block I got back from a machinist had what looked like a metal puck, or washer epoxied to the front of the block. What is the purpose of this? Warranty ?

Upon initial startup the motor ran WAY lean and the thing slid down about an inch. Damn headers were glowing like a flouresent light within a minute of startup. (Had to break the cam in)
That is about the only protection that the machinist/engine builder has when someone comes back in with some kind of problem. It has lead in the center that will melt out at 255 degrees and that will show that the engine was overheated and thus ends all warranties.
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Old Apr 19, 2007 | 11:35 PM
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What are these things usually attached with? There was one on the freeze plug, it was fine.
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Old Apr 20, 2007 | 12:42 AM
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Ron, did you get the Elky fired up? I didn't touch the 62 tonight. It will have to be tomorrow.
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Old May 24, 2007 | 09:57 AM
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Originally Posted by cuisinartvette
What are these things usually attached with? There was one on the freeze plug, it was fine.
Usually an adhesive that can conduct heat.
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